Cthulhu Invictus Rulebooks

The Cthulhu Campaigns: Ancient Rome

2015 Sourcebook Generic / Universal Dark Osprey (0) History (Ancient) Horror (Cthulhu Mythos)

Cohors Cthulhu Gamemaster's Guide

2024 Core Rules Cohors Cthulhu History (Ancient) Horror (Cthulhu Mythos) War

Cohors Cthulhu Player's Guide

2024 Core Rules Cohors Cthulhu Horror (Cthulhu Mythos) History (Ancient) War

Cohors Cthulhu RPG Quickstart Guide

2022 Fast Play Rules Cohors Cthulhu History (Ancient) Horror (Cthulhu Mythos) War

Cthulhu Through the Ages

2014 Sourcebook Call of Cthulhu (7th Edition) Horror (Cthulhu Mythos)

Fronti Nulla Fides

2018 Adventure Call of Cthulhu (7th Edition) History (Ancient) Horror (Cthulhu Mythos)

Prologue

2024 Core Rules Fast Play Rules Cohors Cthulhu Horror (Cthulhu Mythos) History (Ancient) War

The 7th Edition Guide to Cthulhu Invictus

2017 Campaign Setting Sourcebook Call of Cthulhu (7th Edition) History (Ancient) Horror (Cthulhu Mythos)